Samsung Galaxy A91 vs Xiaomi 15 Ultra
The Samsung Galaxy A91 (2021) runs on the Qualcomm Snapdragon 855, while the Xiaomi 15 Ultra (2025) runs on the Qualcomm Snapdragon 8 Elite. By overall MobileRank rating, the Xiaomi 15 Ultra leads — 85/100 vs 51/100 (a 34-point difference). Key differences: the Xiaomi 15 Ultra has the bigger battery (6000 mAh vs 4500); the main camera is 48 MP vs 50 MP; the Xiaomi 15 Ultra is faster in AnTuTu (3,030,376 vs 824,513); the Xiaomi 15 Ultra has NFC for contactless payments, the Samsung Galaxy A91 doesn't.
Samsung Galaxy A91
Xiaomi 15 Ultra
- Overall rating 51/100
- Higher AnTuTu: 3030376 vs 824513
- Better Geekbench Single: 3050 vs 968
- Better Geekbench Multi: 10200 vs 2731
- Bigger battery: 6000 vs 4500 mAh
- Faster charging: 90W vs 45W
- Better main camera: 50MP vs 48MP
- Higher performance (92/100 vs 54/100)
- Better camera (87/100 vs 41/100)
- Longer battery life (80/100 vs 38/100)
- Better display (90/100 vs 81/100)
Comparing the Samsung Galaxy A91 vs the Xiaomi 15 Ultra, the Xiaomi 15 Ultra scores 34 points higher (85/100 vs 51/100). In the "performance" category, the Xiaomi 15 Ultra leads (92/100 vs 54/100). In the "camera" category, the Xiaomi 15 Ultra leads (87/100 vs 41/100). In the "battery" category, the Xiaomi 15 Ultra leads (80/100 vs 38/100). In the "performance" category, the Xiaomi 15 Ultra significantly outperforms the Samsung Galaxy A91 (92/100 vs 54/100). In the "display" category, the Xiaomi 15 Ultra is a bit better (90/100 vs 81/100). In the "camera" category, the Xiaomi 15 Ultra significantly outperforms the Samsung Galaxy A91 (87/100 vs 41/100). In the "battery" category, the Xiaomi 15 Ultra significantly outperforms the Samsung Galaxy A91 (80/100 vs 38/100).
| Specification | Samsung Galaxy A91 | Xiaomi 15 Ultra | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 855 | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 824513 | 3030376 | |
| Geekbench Single | 968 | 3050 | |
| Geekbench Multi | 2731 | 10200 | |
| Display | 6.7" Super AMOLED | 6.7" LTPO AMOLED | |
| Resolution | 1080x2400 | 3200x1440 | |
| Refresh rate | — | 120 Hz | |
| Battery | 4500 mAh | 6000 mAh | |
| Charging | 45W | 90W | |
| Wireless charging | 0W | 50W | |
| DXOMark (camera) | — | 159 | |
| Main camera | 48 MP | 50 MP | |
| Ultrawide | 12 MP | 50 MP | |
| Telephoto | 0 MP | 50 MP | |
| Front camera | 32 MP | 32 MP | |
| RAM | 8GB | 16GB | |
| Storage | 128GB | 256GB / 512GB / 1TB | |
| OS | Android 10, One UI | Android 15 / HyperOS 2 | |
| Brightness (peak) | — | 3200 nits | |
| NFC | no | yes | |
| Protection | — | IP68 | |
| Dimensions | — | 161.3×75.3×9.4 mm | |
| Weight | — | 225 g | |
| Launch price | — | $999 |
Samsung Galaxy A91
- Main: 48MP f/f/2.0
- Ultrawide: 12MP
- Front: 32MP
Xiaomi 15 Ultra
- Main: 50MP f/f/1.63
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Samsung Galaxy A91
- 6.7" Super AMOLED
- Resolution: 1080x2400
- Refresh rate: —
Xiaomi 15 Ultra
- 6.7" LTPO AMOLED
- Resolution: 3200x1440
- Refresh rate: 120 Hz
Samsung Galaxy A91
- 4500 mAh
- Wired: 45W
- No wireless charging
Xiaomi 15 Ultra
- 6000 mAh
- NanoReview test: web browsing 12:19 hrs, total 30:03 hrs
- Wired: 90W
- Wireless: 50W
We compared Samsung Galaxy A91 and Xiaomi 15 Ultra, covering their specs and all relevant benchmarks.
Xiaomi 15 Ultra leads Samsung Galaxy A91 by 72.8% in our overall performance rating.
Samsung Galaxy A91
Price unknownperformance
In the "performance" category, the Xiaomi 15 Ultra significantly outperforms the Samsung Galaxy A91 (92/100 vs 54/100).
display
In the "display" category, the Xiaomi 15 Ultra is a bit better (90/100 vs 81/100).
camera
In the "camera" category, the Xiaomi 15 Ultra significantly outperforms the Samsung Galaxy A91 (87/100 vs 41/100).
battery
In the "battery" category, the Xiaomi 15 Ultra significantly outperforms the Samsung Galaxy A91 (80/100 vs 38/100).
Which is better: the Samsung Galaxy A91 or the Xiaomi 15 Ultra?
The Xiaomi 15 Ultra significantly outperforms the Samsung Galaxy A91 by 34 points (85/100 vs 51/100).
What is the rating of the Samsung Galaxy A91 and the Xiaomi 15 Ultra?
The Samsung Galaxy A91 has a MobileRank rating of 51/100, the Xiaomi 15 Ultra — 85/100.
Which has the better camera: the Samsung Galaxy A91 or the Xiaomi 15 Ultra?
The Xiaomi 15 Ultra leads on camera score (87/100 vs 41/100).
Which is more powerful: the Samsung Galaxy A91 or the Xiaomi 15 Ultra?
The Xiaomi 15 Ultra leads on performance (92/100 vs 54/100).
Should you choose the Samsung Galaxy A91 over the Xiaomi 15 Ultra?
The Samsung Galaxy A91 is a better fit for everyday use. The Xiaomi 15 Ultra is a better fit for gamers and power users, mobile photography enthusiasts, those who care about battery life, budget-conscious buyers.